So are you to my thoughts as food to life,
Or as sweet seasoned show'rs are to the ground;
And for the peace of you I hold such strife
As 'twixt a miser and his wealth is found;
Now proud as an enjoyer, and anon
Doubting the filching age will steal his treasure;
Now counting best to be with you alone,
Then bettered that the world may see my pleasure;
Sometime all full with feasting on your sight
And by and by clean starvèd for a look;
Possessing or pursuing no delight,
Save what is had or must from you be took.
  Thus do I pine and surfeit day by day,
Or gluttoning on all, or all away.
-William Shakespeare, Sonnet 75